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Finding the Fourth Proportional to 18,458.52, 27,687.48 and 8,592.24

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Solution

The fourth proportional to 18,458.52, 27,687.48 and 8,592.24 is: 12,888.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.52 : 27,687.48 = 8,592.24 : x
  2. Step 2: Convert to fraction form
    18,458.52/27,687.48 = 8,592.24/x
  3. Step 3: Cross multiply
    18,458.52x = 27,687.48 × 8,592.24
  4. Step 4: Simplify right side
    18,458.52x = 237,897,473.16
  5. Step 5: Solve for x
    x = 237,897,473.16/18,458.52
  6. Step 6: Final answer
    x = 12,888.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.